Connecting structure of panels

ABSTRACT

A kind of board connecting structure composed of the connected board with baffle plate and side plate, square tube and square nut in the square tube, holes on the square tube surface in corresponding with those on the square nut; and connecting bolt with one threaded end and one recessed end. The connected board is drilled with deep vertical holes at the connecting part, with turn fastener embedded on each hole bottom. Insert the connecting bolt into each deep hole and the turn fastener, and secure the clasp to the recess to conveniently and quickly make the cabinet frame or shelf of any volume, shape and style.

TECHNICAL FIELD

[0001] This invention involves in a kind of board connecting structurefor furniture cabinet frame, especially a kind of dismount-free extendedboard connecting structure.

BACKGROUND TECHNOLOGY

[0002] According to the existing technology, a furniture cabinet frameis usually integrated and hinged by side plates, upper plates and lowerplates of fixed sizes. The lack of this is that user can make thecombination on the basis of the design provided by the supplier only,but not for his own demand. To increase the volume, the only way theuser can do is to add the new cabinet frame, but not to extend the newcabinet frame or shelf on the basis of the original one.

DISCLOSURE OF INVENTION

[0003] The purpose of this invention is to provide a kind ofdismount-free extended board connecting structure, and to assemble orextend the square connected boards into the cabinet frame or shelf ofany volume and shape by such connecting structure.

[0004] The technical settlement program of this invention is: a kind ofdismount-free extended board connecting structure composed of theconnected board with baffle plate and side plate, square tube and squarenut in the square tube with central holes on six sides, holes on thesquare tube surface in corresponding with those on the square nut, andconnecting bolt with one threaded end and one recessed end. The saidconnected board is drilled with deep holes at the connecting edgevertical to the said edge, with turn fastener embedded on each holebottom. Insert the other end of the connecting bolt into thecorresponding deep hole on the connected board, and secure it to therecess by the turn fastener.

[0005] There are at least two sliding square nuts in each said squaretube, and the said connected board has at least two connecting edges,with at least two deep holes drilled on each said connecting edge. Thereis a blind hole on the bottom of the deep hole drilled on the connectingedge of the said connected board, which, with the embedded turnfastener, is vertical to such deep hole. The said connected board is thesquare wood board and square plastic board, and the end of the squaretub is set with the decorative cover.

[0006] The connecting part in this invention can be made of A-alloy orstainless steel or plastic solid square profile. In such case, no squarenut is necessary, and it is feasible to drill and tap at the rightpositions on the surface of the solid square profile, and insert theconnecting bolts.

OPTIMUM EMBODIMENTS OF THIS INVENTION

[0007] Embodiment 1.

[0008] As shown in FIG. 1 to FIG. 6, the connecting structure of theconnecting part and connected board in this invention is: the saidconnecting part 9 is composed of the square tube 3, square nut 1 andconnecting bolt 2. There is a hole tapped in the center of each sixsides on the square nut 1, with the central line of six holes intersectat the center of the square nut 1. There are two or more sliding squarenuts 1 in the square tube 3. So long as the position of each square nut1 inside the square tube 3 is determined, drill holes on the surface ofthe square tube 3 corresponding to holes on the square nut 1. Theconnecting bolt 2 has one threaded end and one recessed end 7. Turn thethreaded end of the connecting bolt 2 respectively into the hole on thesquare nut 1, and set the decorative covers 8 on both ends of the squaretube 3, to make a complete connecting part 9.

[0009] The connected board 4 is composed of the baffle plate and sideplate. Drill deep holes vertical to its connecting edge at thecorresponding positions on its connecting edge and the square tube 3,with a blind hole vertical to this deep hole and used to inlaying theturn fastener 5 opened on the bottom of each deep hole. The said turnfastener has two clasps 6, with cross bath on one end surface. To makethe connection, insert the connecting bolt 2 of the connecting part 9into the deep hole of the connected board 4, with the recess 7 in theinner cavity of the turn fasten 5. Insert the plus driver onto the crossbath on one end surface of the turn fastener 5, and turn it to an angle.At this time, the clasp 6 will enter into the recess 7, and be securedto it as shown in FIG. 2, indicating that the connecting part 9 and theconnected board are firmly connected.

[0010] Embodiment 2.

[0011] As shown in FIG. 7 and FIG. 8, the connecting structure of anunit cabinet frame in this invention is: first, drill deep holesvertical to the connecting edge on the corresponding connecting edges ofthe four square connected boards 4 to be connected, with a blind holevertical to this deep hole and used to inlaying the turn fastener 5opened on the bottom of each deep hole. Then, insert four connectingbolts 2 of the connecting part 9 respectively into the deep holes on thefour connected boards 4, and tighten all turn fasteners 5 to get a unitshelf. To make a unit cabinet frame, the back plate 10 must be assembledon the back of the shelf. The unit cabinet frame with a door in thefront will become a unit cabinet.

[0012] Embodiment 3.

[0013] A detailed embodiment of various combined cabinet frame or shelfextended from a unit cabinet frame or shelf is shown in FIG. 9 and FIG.10. First, drill deep holes on the connected board 4 to be extended andembed the turn fastener 5, turn in the connecting bolt 2 into theconnecting part 9 in its extension direction, put the correspondingconnected board 4 onto the connecting bolt 2, and tighten the turnfastener 5 to build up different kinds of cabinets and shelves, such asthe antique shelf and drinks shelf, etc. Put on the back plate to makevarious cabinet frames including the bookcase, TV and hi-fi cabinet,multipurpose cabinet and showcase. With the door assembled, the combinedcabinet of different styles will be achieved.

INDUSTRIAL APPLICABILITY

[0014] With the standard square connected boards, turn fasteners and thestandard connecting parts composed of the square tubes, square nuts andconnecting bolts, this dismount-free extended board connecting structurecan be used to assemble and extend the cabinet frames or shelves ofdifferent volumes and shapes conveniently and quickly.

[0015] Compared with the exiting technology, this invention has thefollowing advantageous effects: broad applications, simple structure,convenient operation, strong universality, fine interchange performanceand highly standardization degree. We can add the new cabinet frame andshelf at any time, or change the style of the original frame and shelfas we like. To add the new cabinet frame and shelf, it is unnecessary toremove the existing ones, but to take them as a part of the newly addedcabinet and shelf, saving the material, cost and resource.

1. A kind of dismount-free extended board connecting structure, in whichit is composed of the connected board with baffle plate and side plate,square tube and square nut in the square tube with central holes on sixsides, holes on the square tube surface in corresponding with those onthe square nut, and connecting bolt with one threaded end connected tothe hole on the square nut and one recessed end. The said connectedboard is drilled with deep holes at the connecting edge vertical to thesaid edge, with turn fastener embedded on each hole bottom. Insert theother end of the connecting bolt into the corresponding deep hole on theconnected board, and secure it to the recess by the turn fastener. 2.The dismount-free extended board connecting structure as shown in claim1, in which each said square tube has at least two sliding square nutsinside.
 3. The dismount-free extended board connecting structure asshown in claim 1, in which each said connected board has at least twoconnecting edges.
 4. The dismount-free extended board connectingstructure as shown in claim 1 or 3, in which each said connecting edgehas at least two deep holes drilled.
 5. The dismount-free extended boardconnecting structure as shown in claim 1, in which there is a blind holevertical to the deep hole opened on the bottom of such deep hole drilledon the connecting edge of the said connected board, with the turnfastener embedded inside such blind hole.
 6. The dismount-free extendedboard connecting structure as shown in claim 1, in which the saidconnected board is the square wood board or square plastic board.
 7. Thedismount-free extended board connecting structure as shown in claim 1,in which the said square tube has the decorative covers set on its ends.